Took a look at your hitman freeze. I slapped all the info into excel and found your last 50 minutes is where you spike. I've uploaded the excel file here:
https://www.sendspace.com/file/cl167uIn the first graph, the temps are ok, but the GPU usage (in the same graph) is maxed out.
In the second graph, some of the cores are pretty much inactive, but then also are maxed out. This almost tells me that your machine gets unstable with all the cores. You might try using only 6 or 4, and see if you can limit the cpu usage. I beleive you can do that in "poer settings" in windows.
The third graph is the leftover info. The only thing that I see is the memory usage is also high. I don't kbow if this could be a problem
The last graph is the last hour of your log. It's just a zoomed in version of the cpu/gpu usage.
I'm no expert on hardware looking at these logs and all the numbers, but the hopefully the graphs give you a little insight.